Regular verb: stumble - stumbled - stumbled
Simple form | V-ing form |
I may stumble you may stumble she may stumble we may stumble you may stumble they may stumble | I may be stumbling you may be stumbling she may be stumbling we may be stumbling you may be stumbling they may be stumbling |
Perfect | V-ing perfect |
I may have stumbled you may have stumbled she may have stumbled we may have stumbled you may have stumbled they may have stumbled | I may have been stumbling you may have been stumbling she may have been stumbling we may have been stumbling you may have been stumbling they may have been stumbling |
Simple form | V-ing form |
I mayn't stumble you mayn't stumble she mayn't stumble we mayn't stumble you mayn't stumble they mayn't stumble | I mayn't be stumbling you mayn't be stumbling she mayn't be stumbling we mayn't be stumbling you mayn't be stumbling they mayn't be stumbling |
Perfect | V-ing perfect |
I mayn't have stumbled you mayn't have stumbled she mayn't have stumbled we mayn't have stumbled you mayn't have stumbled they mayn't have stumbled | I mayn't have been stumbling you mayn't have been stumbling she mayn't have been stumbling we mayn't have been stumbling you mayn't have been stumbling they mayn't have been stumbling |
Simple form | V-ing form |
may I stumble? may you stumble? may she stumble? may we stumble? may you stumble? may they stumble? | may I be stumbling? may you be stumbling? may she be stumbling? may we be stumbling? may you be stumbling? may they be stumbling? |
Perfect | V-ing perfect |
may I have stumbled? may you have stumbled? may she have stumbled? may we have stumbled? may you have stumbled? may they have stumbled? | may I have been stumbling? may you have been stumbling? may she have been stumbling? may we have been stumbling? may you have been stumbling? may they have been stumbling? |
Simple form | V-ing form |
mayn't I stumble? mayn't you stumble? mayn't she stumble? mayn't we stumble? mayn't you stumble? mayn't they stumble? | mayn't I be stumbling? mayn't you be stumbling? mayn't she be stumbling? mayn't we be stumbling? mayn't you be stumbling? mayn't they be stumbling? |
Perfect | V-ing perfect |
mayn't I have stumbled? mayn't you have stumbled? mayn't she have stumbled? mayn't we have stumbled? mayn't you have stumbled? mayn't they have stumbled? | mayn't I have been stumbling? mayn't you have been stumbling? mayn't she have been stumbling? mayn't we have been stumbling? mayn't you have been stumbling? mayn't they have been stumbling? |